Sports Betting Pushes Kalshi and Polymarket Volumes to All-Time Highs

Why It Matters

The record volumes show prediction markets becoming a mainstream conduit for sports wagering, reshaping the betting landscape and prompting integration with traditional operators. Heightened activity also primes Kalshi and Polymarket for potential token launches and regulatory focus, influencing capital flows in DeFi and gambling sectors.

Summary

October saw prediction‑market platforms Kalshi and Polymarket post record volumes of $7.4 billion combined, driven largely by a surge in sports‑betting activity. Kalshi handled $4.4 billion, including $1.1 billion in sports bets over a week, while Polymarket processed $3 billion, with $357 million in sports bets. The growth follows DraftKings’ acquisition of the Railbird market and expectations of tax advantages under the 2026 “One Big Beautiful Bill” and speculation about future token airdrops, attracting both traditional bettors and crypto‑native capital.